LGGG FIR (Greece):
Take off LGST (Sitia on Crete) and fly the northbound chain to:
1) LGKP (Karpathos)
2) LGRP (Rhodes)
3) LGKO (Kos)
4) LGLE (Leros)
5) LGSM (Samos - very hard approach in anything bigger than a Cessna)
6) LGHI (Chios)
7) LGMT (Lesvos)
😎 LGLM (Limnos)
Finish north at LGKV (Kavala) or LGTS (Thessaloniki).
Most aforementioned islands have 3-5 smaller ones around them, all with small airstrips and/or heliports, some really fun to fly through.
You can go back down south via the inner chain:
Starting at LGTS fly south:
1) LGSK (Skopelos)
2) LGSY (Skyros)
3) LGMK (Myconos)
4) LGSO (Syros)
5) LGSR (Santorini)
6) LGIR (Crete)
Again, most have smaller islands around them.
Greek scenery (excellent and free!) here:
http://avsim.com/greece/scenery/index_main.htm
Get the mesh and the base, then add airports, they have detailed instructions.
Charts:
http://www.avsim.com/greece/hvacc/entrance_gr.htm